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Home > Success Center > Server & Application Monitor (SAM) > SAM - Knowledgebase Articles > Invalid Query error within component monitor in SAM

Invalid Query error within component monitor in SAM

Created by Christine Magbuo, last modified by Jozsef.Budahazy on Sep 07, 2018

Views: 722 Votes: 1 Revisions: 6

Updated 07/09/2018


An error message displayed on the component details page:

Invalid query


All SAM version


The Performance Counters are not working and need to be rebuilt.


  • Rebuild the corrupted performance counters on the monitored machine:
  • Type the following commands at an Administrative command prompt. Press ENTER after each command.
  • cd c:\windows\system32
  • lodctr /R
  • cd c:\windows\sysWOW64
  • lodctr /R
  • Stop and restart the Performance Logs and Alerts service
  • Stop and restart the Windows Management Instrumentation service.
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